NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dennis Marston

Optometrist in Rockford, IL · enumerated 2007 · authorized official Dennis Marston, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1861545261

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Dennis Marston
Other name <Unavail>
Practice address 1215 N Alpine Rd, Rockford, IL, 61107
Phone (815) 391-7898
Enumeration date Jan 19, 2007
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary

Authorized official

Name Dennis Marston
Title Owner
Phone (815) 391-7898

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for Dennis Marston?
NPPES lists Dennis Marston (Owner) as the authorized official for this organization.
What is the NPI number for Dennis Marston?
The NPI for Dennis Marston is 1861545261, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.